Free & Secure Online Tools.
Welcome to NIKK 797 Tools—high-speed, privacy-first web utilities. Whether you need a Markdown Viewer, an offline PDF to Word Converter, or a GST Calculator, all rendering happens strictly on your device.
Featured Tools
Markdown Viewer
Open, render, and edit Markdown (.md) files with live split HTML preview 100% offline.
CalculatorGST Calculator
Calculate GST Exclusive and Inclusive amounts with CGST, SGST, and IGST tax splits for all rate slabs.
CalculatorOvertime Calculator
Accurately calculate your exact overtime pay based on your hourly wage, hours worked, and overtime multiplier.
CalculatorCommission Calculator
Calculate sales commission generated from your deals instantly and determine exact net earnings.
CalculatorHourly to Salary Calculator
Convert your hourly rate into projected weekly, monthly, and yearly gross income totals.
ExtractorVideo to Audio
Extract high-quality audio tracks directly from video files offline in your browser.
ConverterHEIC to JPG Converter
Decode iPhone HEIC format safely offline, translating unreadable media into high-quality JPG photos.
UtilityImage to PDF
Compile multiple photos into a clean, formatted PDF document directly on your device.
ConverterImage Compressor
Shrink the file size of your photos in seconds natively keeping your privacy 100% secure.
UtilityPDF Merger
Stitch multiple PDF documents together sequentially directly on your device offline without server uploads.